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Finding the Fourth Proportional to 257,704.73, 386,464.47 and 89,179.29

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Solution

The fourth proportional to 257,704.73, 386,464.47 and 89,179.29 is: 133,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,704.73 : 386,464.47 = 89,179.29 : x
  2. Step 2: Convert to fraction form
    257,704.73/386,464.47 = 89,179.29/x
  3. Step 3: Cross multiply
    257,704.73x = 386,464.47 × 89,179.29
  4. Step 4: Simplify right side
    257,704.73x = 34,464,627,253.87
  5. Step 5: Solve for x
    x = 34,464,627,253.87/257,704.73
  6. Step 6: Final answer
    x = 133,736.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.